With a functional understanding of the inclusion of variables, tasks, handlers, and playbooks, we can move on to the more advanced topic of Roles. Roles move beyond the basic structure of a few playbooks and a few broken-out files to reference. Roles provide a framework for fully independent, or interdependent, collections of variables, tasks, files, templates, and modules. Each role is typically limited to a particular theme or desired end result, with all the necessary steps to reach that result either within the role itself or in other roles listed as dependencies. Roles themselves are not playbooks. There is no way to directly execute a role. Roles have no setting for which host the role will apply to. Top-level playbooks are the glue ...

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